20647328

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{49633}}^1$

素因数の和:49656

約数の個数: 24

約数和(自身を含む): 43777188

約数和(自身を除く): 23129860

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 49633, 99266, 198532, 397064, 645229, 794128, 1290458, 1588256, 2580916, 5161832, 10323664, 20647328]

約数ペア:

[(1, 20647328), (2, 10323664), (4, 5161832), (8, 2580916), (13, 1588256), (16, 1290458), (26, 794128), (32, 645229), (52, 397064), (104, 198532), (208, 99266), (416, 49633)]